package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.mapper.MemberMapper;
import com.itheima.mapper.OrderMapper;
import com.itheima.mapper.OrderSettingMapper;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.service.OrderService;
import com.itheima.utils.DateUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.Map;

@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {
    @Autowired
    private OrderSettingMapper orderSettingMapper;
    @Autowired
    private MemberMapper memberMapper;
    @Autowired
    private OrderMapper orderMapper;

    //体检预约
    @Override
    public Result order(Map map) throws Exception {
        //1,检查用户所选的预约日期是否已经提前进行了预约设置
        // 如果没有设置则无法进行预约

        String orderDate = (String) map.get("orderDate");//预约日期
        OrderSetting orderSetting = orderSettingMapper.findByOrderDate(DateUtils.parseString2Date(orderDate));
        if (orderSetting == null) {
            //指定日期没有进行预约设置，无法完成体检预约
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }
        //2, 检查用户所选的预约日期是否已经约满，如果已经月满则无法进行预约
        int number = orderSetting.getNumber();//可预约人数
        int reservations = orderSetting.getReservations();//已经预约人数
        if (reservations >= number) {
            //已约满
            return new Result(false, MessageConstant.ORDER_FULL);
        }
        //3，检查用户是否存在重复预约（统一用户在同一天预约了统一套餐）
        //如果是重复预约则无法完成再次预约

        String telephone = (String) map.get("telephone");//获得手机号
        Member member = memberMapper.findByTelephone(telephone);
        if (member != null) {
            //判断是否在重复预约
            Integer memberId = member.getId();//会员ID
            Date order_date = DateUtils.parseString2Date(orderDate);//预约日期
            String setmealId = (String) map.get("setmealId");//套餐ID
            Order order = new Order(memberId, order_date, Integer.parseInt(setmealId));

            //根据条件进行查询
            List<Order> list = orderMapper.findByCondition(order);

            if (list != null && list.size() > 0) {
                //说明用户重复预约，无法完成再次预约
                return new Result(false, MessageConstant.HAS_ORDERED);

            }
        } else {
            //4，检查当前用户是否为会员，如果是则直接完成预约，不是自动帮助其完成注册并预约
            member = new Member();

            member.setName((String) map.get("name"));
            member.setPhoneNumber(telephone);
            member.setIdCard((String) map.get("idCard"));
            member.setSex((String) map.get("sex"));
            member.setRegTime(new Date());
            memberMapper.add(member);//自动完成会员注册
        }
        //5，成功预约，更新当日的已预约人数
        Order order = new Order();
        order.setMemberId(member.getId());
        order.setOrderDate(DateUtils.parseString2Date(orderDate));
        order.setOrderType((String) map.get("orderType"));
        order.setOrderStatus(order.ORDERSTATUS_NO);//到诊状态

        order.setSetmealId(Integer.parseInt((String) map.get("setmealId")));//套餐ID
        orderMapper.add(order);

        orderSetting.setReservations(orderSetting.getReservations() + 1);//已预约人数加1
        orderSettingMapper.editReservationsByOrderDate(orderSetting);


        return new Result(true, MessageConstant.ORDER_SUCCESS, order.getId());
    }
    //根据预约ID查询预约相关信息（体检人姓名、预约日期、套餐名称、预约类型）
    public Map findById(Integer id) throws Exception{
        Map map = orderMapper.findById4Detail(id);
        if(map != null){
            //处理日期格式
            Date orderDate = (Date) map.get("orderDate");
            map.put("orderDate",DateUtils.parseDate2String(orderDate));
        }
        return map;
    }
}
